Simultaneous extraction of nitrogen and sulfur contents from fuel Using Deep EutecticSolvents: A Parametric Study

Ultra-deep desulfurization/denitrogenation technologies are critical for cleaner oils with low impurityand consequent better air quality. In this regard and considering the drawbacks of conventional methods ofHydrodesulfurization and hydrodenitrogenation, the novel and simultaneous extractivedesulfurization/denitrogenation utilizing green and designable solvents Concerning has been proposed. Theused DES is composed of methyltriphenylphosphonium bromide (MTPPBr) and para-toluene sulfonic acid (PTSA)in a particular molar ratio of (۰.۳ (MTPPBr):۰.۷ (PTSA)). A simulated fuel based on n-heptane including Thiophene(TH) and pyridine (PY) as harmful pollutants found in fuel has been examined. The influence of fuel matrices andinitial concentration of impurities on the extraction efficiency has been assessed. In comparison to conventionalDESs, the novel DES demonstrated improved extraction capability to ۸۷% and ۹۸% for desulfurization anddenitrogenation process, respectively.

کلیدواژه ها:

Simultaneous desulfurization/denitrogenation ، Deep eutectic solvents ، Model fuel ، Thiophene ، Pyridine.